Governments change — along with laws, regulations and priorities. It’s the nature of democracies. In Canada, we’ve seen environmental laws implemented, then weakened or overturned, then strengthened and re-instated. But the basic necessities of health, well-being and life shouldn’t be subject to the shifting agendas of political parties. That’s why Canada should recognize the right to a healthy environment in its Constitution — something 110 countries already do.